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Dussun V8i Ultra-pure Class A 500W integrated Amplifier version 2015

Dussun V8i Ultra-pure Class A 500W integrated Amplifier version 2015

Dussun V8i
Price: $1,230.99 USD


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Dussun V8i Ultra-pure Class A 500W hi-end integrated Amplifier
Upgraded version 2015 Brand New
come with remote control


About “Ultra-pure Class A”
The Dussun V series is a new kind of large power Ultra-pure Class A integrated amplifier. The “Ultra-pure Class A” is a “Green” Class A solution, whose technically successful adaptive-bias circuit achieves the extra large class A power output objective under conditions of low-power consumption and low heat producing. The adaptive-bias circuit with an ideal specification permits the amplifier to maintain class A mode output even if the speakers’ impedance drops largely and output power increases several times. This situation is different from the traditional pure class A amplifiers’ inevitable situation of returning to class B when the speaker load impedance goes down, and is much close to the ideal class A amplifier essence.

Overview of Dussun V8i Ultra-pure Class A integrated amplifier
The V8i is an extension of Dussun’s high-end product line. The objective of the development of the V8i, built on mature Dussun products, is:
* improve sound quality completely;
* enhance the power output stage driving; and,
* control capacity upon speakers.
Special design features of the V8i include: the output stage peak current was designed up to 90 A, and the transformer capacity per channel was designed up to 1,000 VA. In order to increase sound quality, and to modify the V8i harmonic spectrum for much lower odd order harmonic wave energy, V8i employed the adaptive-bias circuit with an ideal specification.
Its multi-stage power supply and system loop not only increased the V8i signal-to-noise-ratio to a higher level, but also suppressed the AC power source hum which many times contaminates the purity of the music under a large power output, as well delivered extreme high purity and silence of aural feeling while playing strong dynamic music segments.
The inner configuration of the V8i followed Dussun’s successful full-symmetrical style. This effective configuration is essential to make the V8i achieve a large power output and low noise objective.
There is an independent dedicated protection circuit with complete functionality for per channel, which can auto-diagnose probable overload and malfunction, then auto-protect accordingly.
The preamplifier stage and power amplifier stage are open to the user, allowing the user to use V8i’s either preamplifier stage or power amplifier stage. For general use, V8i’s preamplifier stage and power amplifier stage were linked by a pair of link pins. If the link pins are removed, it is easy for the user to use either V8i’s preamplifier stage or power amplifier stage respectively. The volume control is built in the preamplifier stage, so the preamplifier output signal level is controlled by the volume control knob.
As a terminal open for the user, the preamplifier stage is driven by a high performance low inner resistance buffer, which can drive many kinds of power amplifiers with more than 600 Ohm input impedance. The volume is not controlled by the volume control knob if the V8i’s power amplifier stage is operated solely.
The IR (infrared) Remote Control can be used to control the V8i’s volume and input signal selection.
True Dual Mono configuration
Output power: 250W@8Ω, Class A
500W@4Ω, Class A
Infrared remote control
The preamp and power amp stages may be used separately
Dual Mono ultra-low-noise toroidal transformer
Over 60,000 MFD of filter capacitance per channel
Minimal internal wiring
Ultra-short signal path
Non-magnetic, non-resonant aluminum cover
Non-invasive protection system
Microprocessor-controlled passive volume potentiometer
High quality. double-sided printed circuit boards
Van den Hul CS-122 HYBRID loudspeaker cable for power transfer
Exclusive custom Dussun gold-plated high-current audio connector for
amplifier and loudspeakers.


Input Impedance: 47KΩ
Voltage Gain: 9.5dB ±0.5dB
Frequency Response: 5Hz~20KHz?±0.5dB
Signal to Noise Ratio: ≥100dB(A-weighted)
Maximum Output Level: ≥12Vrms(THD≤0. 1%)
THD+Noise: ≤0.03%(10Hz~20KHz, 1.5V)

Power Amplifier
Input Impedance: 100KΩ
Voltage Gain: 29.5dB±0.5dB(1KHz)
Output Power: 2×250W(8Ω) Class A,
2×500W(4Ω) Class A,
Frequency Response: 5Hz~20KHz ±1dB
THD+Noise: ≤0.2%(20~20KHz,250W,8Ω)
Damping Factor: ≥200
Signal to Noise Ratio: ≥116dB(A-weighted)

Dimensions: 434mm(W)×220mm(H)×530mm(D)/{17 in(W)×8.66 in(H)×20.86 in(D)}
Net weight: 36kg
Shipping Weight: 41kg(90.38 lb)
Power supply: AC220V(±10%)50/60Hz 1500W(MAX)

All items guaranteed 100% BRAND NEW in the original edition Box.


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